diff options
| -rw-r--r-- | drivers/watchdog/rti_wdt.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/watchdog/rti_wdt.c b/drivers/watchdog/rti_wdt.c index 99168d0cad0..320c5ca19e0 100644 --- a/drivers/watchdog/rti_wdt.c +++ b/drivers/watchdog/rti_wdt.c @@ -131,18 +131,19 @@ static int rti_wdt_start(struct udevice *dev, u64 timeout_ms, ulong flags) u32 timer_margin; int ret; - if (readl(priv->regs + RTIDWDCTRL) == WDENABLE_KEY) + timer_margin = timeout_ms * priv->clk_hz / 1000; + timer_margin >>= WDT_PRELOAD_SHIFT; + if (timer_margin > WDT_PRELOAD_MAX) + timer_margin = WDT_PRELOAD_MAX; + + if (readl(priv->regs + RTIDWDCTRL) == WDENABLE_KEY && + readl(priv->regs + RTIDWDPRLD) != timer_margin) return -EBUSY; ret = rti_wdt_load_fw(dev); if (ret < 0) return ret; - timer_margin = timeout_ms * priv->clk_hz / 1000; - timer_margin >>= WDT_PRELOAD_SHIFT; - if (timer_margin > WDT_PRELOAD_MAX) - timer_margin = WDT_PRELOAD_MAX; - writel(timer_margin, priv->regs + RTIDWDPRLD); writel(RTIWWDRX_NMI, priv->regs + RTIWWDRXCTRL); writel(RTIWWDSIZE_50P, priv->regs + RTIWWDSIZECTRL); |